Réamhaisnéis limistear na farraige
Forecast valid from: 18:00, Friday 12 December 2025 until 18:00, Saturday 13 December 2025
Small Craft Warning
Southwest winds will increase force 6 or higher on all Irish coasts this evening, tonight and tomorrow.
Gale Warning
Southwest winds will reach gale force 8 or strong gale force 9 tomorrow on Irish coastal waters from Valentia to Malin Head to Wicklow Head and on the Irish Sea.
Atlantic Swell
On Atlantic coasts.
Meteorological Situation at 15:00 UTC
A depression of 958hPa centred just south of Iceland generates a moderate to strong southwest airflow over Ireland. An occlusion in the west will track eastwards across Ireland on Friday and weaken.
Gale Warning: In effect
Small Craft Warning: In effect
Heavy Swell (>4m) : yes
Forecast for Irish coastal waters from Mizen Head to Slyne Head to Fair Head
Wind: Southwest force 5 or 6. Soon increasing force 6 or 7, occasionally reaching gale force 8. Later increasing force 7 or gale force 8, reaching strong gale force 9 at times.
Weather: Fair with scattered showers. Becoming cloudy soon with rain and drizzle later.
Visibility: Good, decreasing moderate or poor in precipitation.
Forecast for Irish coastal waters from Fair Head to Howth Head to Mizen Head and for the Irish Sea
Wind: Southwest force 4 or 5, soon reaching force 6 at times. Later increasing force 7 or gale force 8.
Weather: Fair with isolated showers. Later becoming cloud with rain and drizzle.
Visibility: Good, decreasing moderate or poor in precipitation.
Outlook for a further 24 hours until 18:00, Sunday 14 December 2025
Strong to gale force south to southwest winds, decreasing moderate to fresh in the west and north on Sunday morning and afternoon. Weather: Rain, heavy at times.
Forecast issued at: 18:00, Friday 12 December 2025
All times are local unless specified
